The sliding behavior always depends on the overall sliding system, and on parameters like sliding partner, load, sliding speed, surface roughness, temperature and so on. The fillers carbon fiber and graphite make TECAPEEK PVX black a superior bearing grade with improved thermal conductivity. PEEK O-rings, Peek Seats, PEEK Bushings, PEEK Bearings, PEEK Guide Blocks. The better the thermal conductivity of the part, the faster the heat is dissipated and overheating can be reduced. PEEK Machining - Milled & Turned PEEK Plastic Parts, Quality Turned Plastics. In order to avoid thermal overload of a bearing, the resulting frictional heat should be dissipated as quickly as possible from the sliding surface of the bearing. Because of these excellent sliding characteristics, they are used in gears, bearings, sliding bearings, and many other applications. PEEK is used where conventional materials (POM, PA / Nylon etc.) would be beyond their limits. With this combination of criteria, this bearing grade material can be used in harsh environments of 100 to 300☌. Improved heat dissipation (reduced frictional heat).Still, many applications call for special PEEK bearing grades as TECAPEEK PVX black, containing a multiple filler system (graphite, carbon fiber and PTFE), to fulfill a combination of requirements: Unfilled PEEK natural is the most balanced material in high temperature environments, where non-lubricated sliding and non-contamination is required. PEEK bearing materials with excellent heat resistance and durability Polyetheretherketone is often viewed as one of the engineering thermoplastics that tends to command a high price, however experienced users have come to realise the added value that PEEK materials bring by offering the possibility of manufactured parts that are lighter, stronger and able to survive longer periods under harsh conditions. PEEK plastic is often used in hot water or steam environments because it maintains physical properties such as flexural and tensile strength at a high level despite the severe environment. Parts manufactured from high temperature plastic PEEK polymer can also operate at temperatures up to 260☌ (480☏) and have a melting point around 341☌ (646☏). 30 carbon-filled PEEK has greater thermal conductivity than unfilled PEEK. It is the grade with the optimum wear-resistance and load carrying characteristics. And as a result its expansion rate is dramatically lowered. PEEK is a unique semi crystalline, engineering thermoplastic that also offers excellent chemical compatibility. PEEK CF30 is enhanced with 30 carbon fiber.The compressive strength and stiffness of the material is enhanced. It is extruded in sheet, rod and tube that may use Victrex® PEEK 450G or Solvay KetaSpire® KT-820 polymer. Some of the properties of 450G and 150G are compared in the table below to illustrate these differences.PEEK material (chemically known as polyetheretherketone) is manufactured by Ensinger in standard stock shapes for machining. This is a consequence of the shorter polymer chains, which are less entangled, crystallise more readily and to a greater overall extent. The high strength-to-weight ratio and heat tolerance of PEEK plastic makes it a popular choice for a wide range of applications including aerospace, biomedical, pharmaceutical, fiber optics, automotive, industrial, and more. However, the lower molecular weight also changes the bulk properties of the polymer: lower molecular weight PAEKs have higher stiffness and strength combined with reduced toughness, ductility and impact resistance. Springboard works with a wide variety of materials in our injection molding processes. As a result, 150G may be more suitable for applications where lower viscosity in the melt during processing is desirable, for example, when injection moulding thin-walled parts or long, thin sections with intricate geometries impregnating carbon or glass fibres for composite prepregs or adding high levels of solid fibrous or particulate fillers and reinforcements to make compounds. VICTREX PEEK 150G is a higher flow, lower molecular weight, lower MV grade of PEEK compared to 450G. Other VICTREX PEEK grades are available with higher and lower melt viscosities and higher or lower molecular weights respectively. VICTREX PEEK 450G is defined as a standard melt viscosity (MV) PEEK grade, with a medium molecular weight.
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